#include <bits/stdc++.h>

using namespace std;

ifstream fin("duel.in");
ofstream fout("duel.out");

const int N = 100005;

int n, cnt[N];

int main()
{
    fin >> n;
    for (int i = 0, r; i < n; fin >> r, cnt[r] += 1, i++);

    int ans = 0;
    for (int i = 0; i < N; ans = max(ans, cnt[i++]));

    fout << ans << '\n';

    return 0;
}